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Supplemental Information for the Black Creek Crayfish Biological Supplemental Information for the Black Creek Crayfish Biological Status Review Report The following pages contain peer reviews received from selected peer reviewers, comments received during the public comment period, and the draft report that was reviewed before the final report was completed March 31, 2011 Table of Contents Peer review #1 Dr. Keith Crandall .................................................................................................. 3 Peer review # 2 from Dr. Dale Jackson .......................................................................................... 4 Letters and emails received during the solicitation of information from the public period of September 17, 2010 through November 1, 2010 ............................................................................ 6 Email from Allan Hallman, FWC ............................................................................................... 6 Email from Rick Cantrell ............................................................................................................ 7 Email from Patrick O’Connor, DEP ........................................................................................... 8 Copy of the Black Creek crayfish BSR draft report that was sent out for peer review .................. 9 Supplemental Information for the Black Creek Crayfish 2 Peer review #1 Dr. Keith Crandall Evaluation of the Black Creek crayfish – Procambarus pictus 1) Completeness and accuracy of the biological information and data analysis The evaluation of the Black Creek Crayfish is thorough and has consulted all the published data I am aware of on this crayfish. The conclusion is a listing of Threatened which seems justified by the data and methodology. The IUCN listing is Near Threatened which is consistent with the listing proposed here due to the restricted geographic range. There are well documented threats to this species that coupled with the restricted range justify the listing as Threatened. 2) Reasonableness and justifiability of assumptions, interpretations of data, and conclusions The assumptions of the assessment are reasonable and the interpretations of the data appropriate and therefore the conclusion of Threatened is also a well justified conclusion. The species has a small extent of occurrence and has clear threats to the limited habitat. The “number of locations” is really not particularly helpful as this depends a lot on collecting effort and frequency of stops. More appropriate information would be gathered through genetic analysis of diversity and population substructure of the species. Nevertheless, the proposed status of Threatened is justified by the data. In the BSR Information Findings document, under data for population size reduction, there is listed “no data supporting xx% decline”. Note that there is no data supporting that the population is stable either. This suggests that the conclusion is we assume populations are stable when we have no data. This is a dangerous approach to conservation biology and, I think, ill conceived. You should make conclusions based on what data you have, not on data you do not have. In this case, the data clearly indicate that the species is threatened. Supplemental Information for the Black Creek Crayfish 3 Peer review # 2 from Dr. Dale Jackson From: DaleJackson [mailto:[email protected]] Sent: Wednesday, January 26, 2011 4:32 PM To: Cook, David Subject: P. pictus review plus replacement erythrops review Dave, I noticed that I had not included my name on the erythrops comments I sent yesterday, so please substitute this one, which otherwise is unchanged. Thanks for the other replies, which I’ll dig into next week and use to update our database. I’ll be back at FNAI on Monday if you need to reach me. Dale Dale R. Jackson, Ph.D. Senior Research Zoologist Florida Natural Areas Inventory Florida State University 1018 Thomasville Road, Suite 200-C Tallahassee, FL 32303 Supplemental Information for the Black Creek Crayfish 4 January 26, 2011 1018 Thomasville Road Suite 200-C Tallahassee, FL 32303 850-224-8207 fax 850-681-9364 Procambarus pictus Final Draft BSR review www.fnai.org Dale R. Jackson, Ph.D. Senior Research Zoologist, FNAI The analysis seems proper; I believe it appropriate to err on the side of caution in this case, where development and land use changes in the region could substantially alter this species’ habitat. I know of no additional data for the species. I provide a few additional comments below. Literature Cited: I note that placement of this section is inconsistent between the BSRs for this species and P. erythrops. Follow the same format (before the table, I believe). Text citations to “FNAI 2001” are confusing. There is no “FNAI” listed in Literature Cited, which lists “Florida Natural Areas Inventory,” as it should. At least the first text citation needs to spell it out (and give acronym if use it subsequently, though can just spell it out for all, though I see FNAI in the table). Table: Area of occupancy: you could be more decisive, saying “much” < 772, or < 100 (given restriction to narrow streams). Fluctuations: maybe better to say no “documented” fluctuations (no one really has data for this for number of adults). Dd2: I find “AOO has not been calculated and might be < 20 km2; ….. so criterion is not met” to be a bit inconsistent. The first part implies that it might be met, but we can’t definitively say it is. So better to end with something like “so there are no conclusive data to confirm (or document) that the criterion is met.” Florida Resources and Environmental E: the criterion itself is chopped off, not sure why FWC didn’t fix this in their template, Analysis Center but it really should be. Institute of Science and Public Affairs Supplemental Information for the Black Creek Crayfish 5 Letters and emails received during the solicitation of information from the public period of September 17, 2010 through November 1, 2010 Email from Allan Hallman, FWC To whom it may concern, Please check your records and see if you were forwarded a copy of the 2008 survey that was conducted on Jennings State Forest and Camp Blanding Joint Training Site (National Guard base). The file is quite large so emailing it may not work (over 10MB). The document's title is: Survey for Black Creek Crayfish at Jennings State Forest and Camp Blanding Joint Training Center, Clay and Duval Counties, Florida FWC Final Report June 2008 Richard Franz, Heather Smith, and Allan Hallman Please contact me at the following address if needed: Allan Hallman FWC - Camp Blanding Field Office 5629 SR 16 West, Bldg 4396 Starke, FL 32091 Supplemental Information for the Black Creek Crayfish 6 Email from Rick Cantrell From: Rick Cantrell To: Imperiled Subject: Google Earth Placemark Date: Monday, October 11, 2010 4:05:14 PM Attachments: GoogleEarth_Placemark.kmz While permitting the DuPont Maxville mine, DEP encountered a substantial population of Black Creek crayfish within the red polygon in part resulting in permitted mining being moved upstream from the requested locations. Richard W. Cantrell Supplemental Information for the Black Creek Crayfish 7 Email from Patrick O’Connor, DEP From: OConnor, Patrick To: Imperiled Subject: Black Creek Crayfish Date: Monday, October 18, 2010 10:37:06 AM Information regarding the Black Creek Crayfish collected as part of our Stream Condition Index samplings should be available in the States database SBIOS. Supplemental Information for the Black Creek Crayfish 8 Copy of the Black Creek crayfish BSR draft report that was sent out for peer review Biological Status Review for the Black Creek Crayfish (Procambarus pictus) EXECUTIVE SUMMARY The Florida Fish and Wildlife Conservation Commission (FWC) directed staff to evaluate all species listed as Threatened or Species of Special Concern as of September 1, 2010. Public information on the status of the Black Creek crayfish (Procambarus pictus) was sought from September 17 to November 1, 2010. The members of the biological review group (BRG) met on November 18, 2010. Group members were David Cook (FWC lead), Paul Moler (retired FWC biologist, serving as an independent consultant), and Richard Franz (retired University of Florida/Florida Museum of Natural History biologist, serving as an independent consultant). In accordance with rule 68A-27.0012 Florida Administrative Code (F.A.C.), the BRG was charged with evaluating the biological status of the Black Creek crayfish using criteria included in definitions in 68A-27.001(3) and following the protocols in the Guidelines for Application of the IUCN Red List Criteria at Regional Levels (Version 3.0) and Guidelines for Using the IUCN Red List Categories and Criteria (Version 8.1). Please visit http://www.myfwc.com/WILDLIFEHABITATS/imperiledSpp_listingprocess.htm to view the listing process rule and the criteria found in the definitions. The BRG concluded that the Black Creek crayfish met listing Criterion B (geographic range), based on the species’ small extent of occurrence and area of occupancy, its distribution among 10-12 threat-prone “locations,” and observed and projected continuing decline in area of occupancy and quality of habitat. Staff recommended that the Black Creek crayfish be included on the State-designated Threatened list because it meets criteria for listing as described in 68A-27.001(3). This work was supported by a Conserve Wildlife Tag grant from the Wildlife Foundation of Florida. BIOLOGICAL INFORMATION Life History References Franz and Franz 1979, Brody 1990, Franz
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